Re: Psychic !
If you look at whatever 9 is, then that'll always be the answer. All two digit numbers when added and then subtracted by the combined will equal a multiple of 9. Every multiple of 9 has the same picture as 9 does, so that's how it's accomplished.
Examples:
99: 9+9= 18, 99-18= 81, 81/9 = 9 (Multiple being 81)
31: 3+1= 4, 31-4=27, 27/9 = 3 (Multiple being 27)
42: 4+2= 6, 42-6= 36, 36/9= 4 (Multiple being 36)
66: 6+6= 12, 66-12= 54, 54/9 = 6 (Multiple being 54)
Get it now or is that too jambled up?
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